Nausea without food may be caused by early pregnancy, gastrointestinal diseases, pancreatic diseases and other conditions, which can be improved through dietary regulation, medication and other ways. 1. Early pregnancy: when the patient is a woman, if there is no appetite and nausea, you can consider whether early pregnancy occurs, early pregnancy by the hormonal influence may appear nausea and vomiting, no appetite and other symptoms, the patient can consume some appetizing, light food, such as hawthorn, oranges, grapefruit and so on. 2. Gastrointestinal diseases: If the patient has gastrointestinal diseases, it will lead to the weakening of gastrointestinal function, resulting in bloating, nausea, lack of appetite and other symptoms, at this time, the patient can be used to promote the gastrointestinal tract peristalsis of the medicines such as Mosapride, Itopride and other drugs to ease the symptoms of the treatment, and also for the cause of the disease to the right treatment. 3. Pancreatic diseases: when patients with pancreatic diseases, such as pancreatitis can lead to gastrointestinal function is weakened, can also cause patients to appear nausea symptoms, at this time the patient can use omeprazole, octreotide, moxifloxacin and other drugs for treatment. Drugs should be used under the advice of a doctor. When the patient occurs nausea without appetite continued without relief, it is best to go to the hospital in time to find out the cause, symptomatic treatment.